Furnace wall



. www@ M. LIPTAK FURNACE .WALL

July 24, 1923.

Fi1ed Dec. 10.1921 s sheets-sheet 1 .wh ....u ..f 1 1 .1 r .b .51.131,.. 1v?. u. v .|.l1 1 1 1.11.... 11 1 .5.4. 1,. 1 .11 1 11 1 1 1 111 1 .1 .1 1 1 1 July 24, 1923.

M. LJPTAK FURNACE WALL Filed Dec. l0. 1921 3 Sheets-Sheet 2 Jy 24, i923.

M. LIPTAK FURNACE WALL Filed Deo. l0. 1921 3 Sheets-Sheet 5 @aim fir 7 lwlw" Patented July 24, 1923.

N l T E D PATENT oFFlcE.

MICHAEL LIPTAK, 0F ST. PAUL, MINNESOTA, ASSIGNOR TO A. P. GREEN FIREBRICK COMPANY, OF MEXICO, 'MISSOURL .A CORPORATION OF MISSOURI.

FURNCE WALL.

Application. led December 10, 1921. Serial No. 521,378.

To all 'whom it may concern.'

Be it known that I, MICHAEL LIPTAK, a citizen of the United States,residin at St. Paul, in the county of Ramsey and tate of Minnesota, haveinvented certain new and useful Improvements in Furnace Walls; and I dohereby declare the lfollowing to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the artto whichit appertains to make and use the same.

My present invention relates to the construction of furnace walls and isin the nature of a modification of or improvement on the constructiondisclosed and claimed in my co-pending application filed of even dateherewith under Serial Number 521,377

In' the wall of my said co-pending application and in the present wall,the complete wall structure is made up of a permanent outer masony walland a replaceable inner masonry wall, and said inner wall includeshorizontally aligned shelfforming tiles, certain of which are partlyimbedded in and anchored to the permanent outer wall.

The present invention is directed to certain novel features which willbe fully described in connection with the accompanying drawings, whereinlike characters indicate like parts throughout the several views.

Referring to the drawings:

Fig. 1 is a fragmentary-perspective with some parts removed, showing afurnace wall designed in accordance with my present invention;

Fig. 2 is a fragmentary plan view of the wall shown in Fig. 1, some ofthe tiles o f the outer wall and shelf-forming tiles of the inner wallbeing removed;

Fig. 3 is a fragmentary elevation looking at the inner face of thecomplete wall structure;

Fig. 4f is a vertical section taken on the line 4--4 of Fig. 2;

Fig. 5 is a fragmentary elevation lookmg at the outer face of thecomplete wall;

Fig. 6 is a perspective of one of the main shelf-forming tiles;

Fig. 7 is a perspective of one of the sup'- plemental shelf-formingtiles;

Fig. 8 is a perspective of one of the tiles of the permanent outer wallstructure;

Fig. 9 is a view corresponding to Fig. 2

but illustrating a slightly modified construction;

Fig. 10 is a vertical section taken on the line 10-10 of Fig. 9;

Fig. 11 is a perspective showing two adjacent tiles of the permanentouter wall, the same being slightly separated; and

'Fig 12 is a perspective showing one of the supplemental shelf-formingtiles of the structure illustrated in Figs. 9 andl 10.

The outer or permanent masonry wall is made up chiefly of ordinarybricks 10 laid in mortar in the customary way; but to provide forshelves to support the horizontal sections of the replaceable innerwall, said outer masonry wall, on certain horizontal lines, is providedwith tile courses made up of approximately L-shaped tiles 12 that arelaid alternately so that said L- shaped tiles are positioned back toback and end to end, thereby leaving in the tile layer rectangular seatsor openings, into which the'main shelf-forming tiles are adapted to beinserted.

rI`he main shelf-forming tiles 11 constitute elements of the replaceableinner wall and they are, as above indicated, partly imbedded in andanchored to the permanent outer wall by insertion of their outerportions into the rectangular seats of the tire layers of said outerwall. Said tiles project to the inner surface of the inner wall to adaptthe shelf-forming tiles 11 to support the supplemental shelf tiles 14,said tiles 11 at their parallel edges are rabbeted at 15 and thev edgesof the supplemental tiles 14 are reversely rabbeted so that the latterwill be supported by and horizontally iiush with the former.

The main body portion of the replaceable inner wall is made up of hightemperature or tire brick 16 laid in superimposed horizontal courses onthe shelf-forming tiles, filling the spaces between the verticallyspaced horizontal shelves, as best `shown in Fig. 1.

From the above, it is evident that the complete furnace wall, includingwhat is herein particularly designated as the permanent outer masonrywall and the replaceable inner fire wall, may be made up entirely ofmasonry work.

When any portion of the inner fire wall has been burned away to a pointwhere it re- Vquires replacement, the defective lire bricks or tiles maybe removed or replaced without disturbing or taking down the permanentouter wall. If only a few of the bricks 16 have been burned away, theymay be removed and replaced without disturbing the Shelf tiles. However,usually also some of I the shelf tiles will be burned and require re-vplacement, and this may be readily -done as follows: The replacement ofany of the supplemental shelf-forming blocks 14 is a very simple mattersince it does not extend into the permanent outer wall. If one of thepartly imbedded main shelf-forming tiles 11 requires replacement, it maybe easily pulled or knocked out of position', thereby making 'possiblethe replacement thereof by a new tile of the same character. The outeror permanent wall is not weakened or disturbed to any appreciable extentby the above o eration because, at intervals between tllie seats formedfor the main shelf-forming tiles, said outer wall is left intact orvwith complete vertical supports.

The construction lllustrated in Figs. 9 to f 12, inclusive, is like thatalready described,

except that the outer wall tiles 12, at the under surface of their longabutting edges, are formed with rabbets 12a that afford a channel thatleads to a centrally located channel 14El formed in the bottom of theadjacent supplemental shelf-forming tile 14. Ihese groove-formingrabbets 12a and channels 14a permit stilil metal bars 17 to-'be insertedthrough the permanent outer wall and v under the supplementalshelf-forming tiles 14, as shown in Figs. 9 and 10.

Obviously, the metal bars 17 thus applied supplemental shelf-formingtiles while making rev pairs. Said bars 17 may be removed from the wallunderordinary conditions or they may be left in place. Y

It should be noted .that in 'the wall deforded for the outer endsscribed the tile courses of the permanent outer wall are made up oftiles, all of one kind, towit: of L-shaped tiles, laid in the alternatedpositions described, with their transverse long portions affordedcomplete wall-forming elements between the seats afof themainshelfforming tiles 11. This construction is therefore not only veryelective, but the tiles may be cheaplymade' and rapidly and accuratelylaid.

W'hat I claim is: l

1. A wall structure comprising a perma-` nent masonry outer wall and areplaceable masonry inner wall, said outer wall having vertically spacedhorizontal tile layers made up of alternately reversed L-shaped tiles,and said inner wall including shelf-forming tiles partly imbedded inseats formed in said outer wall by said L-shaped tiles.

2. The structure defined in claim 1 in which su plemental shelf-formingtiles are supported) by said main shelf-forming tiles and extend onlywithin the outer wall space.

3. The structure defined in claim 2 in which said shelf-forming tilesare provided with lapped rabbeted edges and are thereby madehorizontally flush.

4. The structure defined in claim 1 in further combination with metalbars insertable through grooves in said wall structure, from theouter-side of the wall structure to positions underlying and supportingcertain of the shelf-forming tiles.

5. The structure delined in claim 2 in which said L-shaped tiles attheir long abutting edges are formed with rabbets and said supplementaltiles are formed with channels, and in further combination with metalbars insertable through said rabbets and channels to support saidsupplemental tiles from the outer wall structure.

In testimony whereof I ax my signature.

' MICHAEL LIP'IAK.

